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Finding the Fourth Proportional to 8,009.55, 11,056.84 and 5,711.38

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Solution

The fourth proportional to 8,009.55, 11,056.84 and 5,711.38 is: 7,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.55 : 11,056.84 = 5,711.38 : x
  2. Step 2: Convert to fraction form
    8,009.55/11,056.84 = 5,711.38/x
  3. Step 3: Cross multiply
    8,009.55x = 11,056.84 × 5,711.38
  4. Step 4: Simplify right side
    8,009.55x = 63,149,772.92
  5. Step 5: Solve for x
    x = 63,149,772.92/8,009.55
  6. Step 6: Final answer
    x = 7,884.31

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.